Schaft



Feb. 28, 1933. E. BREITLING I 1,899,455

TOTAL TAKING MECHANI SM Filed Dec. 2a, 1928 3 Sheets-Sheet 1 Feb 28, 1933.

E. BREITLING TOTAL TAKING MECHANISM Filed Dec. 26, 1928 3 Sheets-Sheet 3 Patented Feb. 28, 1933 UNITED STATES PATENT OFFICE ERNST BREITLING, OF ESSEN, GERM ANY, ASSIGNOR TO FRIED. KRUPP AKTIENGESELL- SCHAFT, OF ESSEN-ON-THE-RUHR, GERMANY TOTAL TAKING MECHANISM Application filed December 26, 1928, Serial No. 328,525, and in Germany February 24, 1928.

The invention relates to a total taking mechanism comprising a differential mechanism that consists of differential actuators and auxiliary differential actuators moved complementarily thereto, and in which the adding wheel is arrested when reaching its zero position and the auxiliary differential actuator which till then is locked is released.

The invention has in particular reference to a peculiar construction of the mechanism of the type stated which is destined to be used in conjunction with a great number of adding mechanisms arranged in several rows in order packets. More particularly, in' order to render more reliable the function of the mechanism, according to the invention the performance of the alternative locking of the differential actuators is effected by the drive of the totalizing tooth, the differential mechanism used being of the type having oppositely moved differential actuators, with the transfer of the actuating fingers cooperating with the totalizing teeth from operative to inoperative position being controlled by the driving mechanism of the machine.

In order to allow of the invention to be more easily understood, a preferred embodiment of same is illustrated by way of example in the drawings which accompany and form part of this specification. In these drawings Figure 1 is a side elevation of the mechanism,

Figure 2 is a similar view,some partsbeing omitted or in another position,

Figure 3 is a section on line III-III of Fi ure 1,

Figure 4 is a side elevation of the differential mechanism with its differential gear, and

Figure 5 is a section on line VV of ,Figure 1.

The cash register to which the embodiment hereinafter described of the invention is applied possesses several rows 11, 12, 13, 14, Figure 1, of adding mechanisms which in known manner are mounted on rider axes 15, Figures 1 and 5, and consist each of nine individual adding mechanisms. The adding wheels 16 of each order are juxtaposed so as to form a packet and mounted on hubs 17 supported by partitions 10, Figure 5, of the totalizer frame. Each hub 17 carries on its right-hand end a differential wheel 18, see Figure 5, that by intermediate pinions 22, 23, Figure 1, mounted on shafts 19, 21 is driven from a main differential wheel 25 loose on a shaft 24 and common to all of the rows of adding mechanisms. The hubs 17 Figure 5, of the rows of adding mechanisms 11 to 14 can be coupled with each of the nine individual adding mechanisms by correspondingly shifting axially the rider axis whereby riders 28 are set to the adding Wheels 16 of the individual adding mechanisms to be selected, which riders 28 are rotatably but nonshiftably arranged on said axes 15 and project through longitudinal slots 26 of the hubs 17 and co-operate with internal rims of teeth 27, Figures 1 and 5, of said adding wheels 16. The means serving to select the adding mechanisms and to shift the rider axes 15 are known in themselves and therefore need not be described in detail. The same holds good of the means for rocking into and out of gear the individual rows of totalizers with the intermediate pinions 22, this rocking motion taking place about fixed shafts 29.

The differential mechanism of the machine is of the tonging type and comprises two rocking members mounted on a main shaft 32, Figures 1 and 4, and co-operating with the keys 31, Figure 1, viz. the main actuator 33 and the auxiliary actuator 34, which two actuators are connected'and driven by a differential gear arranged on the shaft 24. This gear'comprises a pinion 35, Figures 4 and 5, rigid on shaft 24, a toothed segment 36 loose on shaft 24 and possessing two arcuate racks and 30, the teeth 20 being in mesh with an arcuate rack 37 of the auxiliary actuator 34, and two planet wheels 38, 39 integral with one another, the wheel 38 being permanently in mesh with the pinion 35, while Wheel 39 permanently engages the rack 30. The planet wheels 38, 39 are rotatably mounted on a pin 41 fixed on the main differential wheel to which a further arcuate rack 42 is rigidly connected that engages a rack 43 of the main actuator 33.

In each operation of the machine, whether adding or total-taking operation, shaft 24 is rocked forward and back one time b the driving mechanism of the machine. I hen this takes place, the differential actuators 33, 34 through the intermediary of the differential gear 35 to 39 are moved toward one another (setting motion) and returned again (return motion). The total of their amplitude alwaysamounts to ten angular units. If a key 31, Figure 1, had been depressed, the two actuators 33, 34 are approached from both sides with their free ends from the position of rest shown in Figure 1 to the foot of the depressed key 31. In so doing the main actuator 33 passes through a number of angular units corresponding to the value represented by the depressed key. This motion of actuator 33 is uniformly taken part in by the main differential wheel 25 and all of the intermediate wheels 22, 23.

With adding operations during the setting operation of the differential mechanism all of the packets 11 to 14 of adding mechanismsare in the out of gear position. Previous to the beginning of the return motion of the actuators 33, 34 the selected packets of adding mechanisms are swung into gear by the respective shafts 29 rocking, Figure 1, whereby the respective differential wheels 18 come into mesh with the corresponding intermediate wheels '22. Thereupon by means of the main differential wheel 25 the appurtenant intermediate wheels 23, 22, the differential wheel 18 and its rider 28, the return motion of the main actuator 33 and therewith the.

value corresponding to the depressed key is transmitted to the selected adding wheel 16. In adding operations the rotation of the adding wheels takes place in clockwise direction,

Figure 1. In total-taking operations the object of which is to transmit the amount contained in the selected adding mechanism first to the main actuators 33 andfrom there .to

the indicating and printing wheels (not shown), the adding wheels 16 have'to be returned to zero position in subtractive rotary direction. In order to enable the hereinbefore described differential mechanism to be used In this manner the actuating motion, amounting to ten units, of the shaft 24 is transmitted by the differential gear 35 to 39 to the differential members 33, 34 in accordance with the total value contained in the selected adding mechanism 16 in the form of partial values complementary to one another. The lattcr then set themsel'v es in such a manner as if the key 31 corresponding to the said total value had been depressed.

To lock the auxiliary actuator 34, Figure 1, as indicated above, a roller 44 is providedv adapted to cooperate with an inclined face 45 and a locking circumferential face 46 of the auxiliary actuator 34. This roller 44 is mounted on the arm 48 of a two-armed lever 48, 49, whose hub 54 is arranged on a spacing sleeve 51, surrounding a shaft 47; (Figures 1 and The spacing sleeve 51 is indisplaceable and the shaft 47 is axially shiftable within sleeve 51. The two-armed lever 48, 49 is forced to take part in this axial shifting motion of shaft 47,.but is capable of turning relatively thereto by a certain amount. To this end a pin 55 of the shaft 47 projects through a slot 52 of sleeve 51 and engages a corresponding internal groove 53 of the hub 54 of the two-armed lever 48, 49. The object of the axial shift is to set, in'setting the machine to total-taking, the roller 44, Figure 3, into the path of the auxiliary actuator 34, which roller normally is out of this path. To this end the means (not shown) serving to set the machine to total-taking, e. g. a total taking lever, is connected to a shaft 56. which through the intermediary of a grooved drum 57 co-operates with a roller 58 non-shiftably mounted on shaft 47. The latter is secured against rotation by an arm 59 that embraces shaft 56. Upon setting the machine to totaltaking, the rollers 44 arrivein the path of the auxiliary actuators 34 and lock them in position of rest. To lock the main actuator 33 a two-armed lever 61, 62, Figures 1 and '3, is provided that is loosely mounted on shaft 47' and by its downwardly directed locking arm 61 co-operates with a locking wheel 63 mounted on shaft 32. This latter wheel is rigidly connected to a pinion 64 that is permanently in mesh with the main difi'erential wheel 25. Owing to the latter being in mesh with the 'main actuator 33 through the arcuate rack 42, by locking the locking wheel 63 by arm 61 also the main actuator 33 and the adding wheel coupled therewith is locked.

The upper arm 62 of the two-armed lever 61, 62 carries a pin 65 which engages a recess 66, Figure 1, of the lever arm 49 and is of a length such as to remainin mesh therewith even if lever 48, 49, Figure 3, is shifted. As to their rocking motion about shaft 47 the two double-armed levers 48, 49 and 61, 62

thus are always positively connected to one another.

Besides, the locking face of arm 61 and the roller 44 are so arranged, see Figure 1, that the main actuator 33 and the auxiliary actuator 34 can be locked only alternatively.

When a totalis taken, the auxiliary actuator 34 at first is being locked by roller.44, as already mentioned, while the main actuator 33 is being released by arm 61, to return the adding wheel 16 to zero position. When mounted on a shaft 76.

this latter position has been reached, the auxiliary actuator 34 has to be released and the main actuator to be locked. This is performed by a common rocking motion of the double-armed levers 48, 49 and 61, 62, the locking arm 61 engaging the locking wheel 63 while roller 44 rolls upward along the inclined face 45. Said rocking motion is caused by the totalizing tooth 67 of the actuated adding wheel 16, see Figures 1 and 5. \Vith this wheel co-operates a finger 69 rotatably but non-shiftably mounted in the manner of the riders 28 on a shaft 68. The shaft 68 is connected to the appurtenant rid er axis 15 by atransverse plate 40, Figure 5, so as to be shifted axially therewith to select the adding mechanism, so that the finger 69 is always opposite the adding wheel that comes into mesh with the main actuator 33. In each order of the row of adding mechanisms is arranged non-shiftably and co-axially to shaft 68, Figures 1 and 5, a sleeve 71 which surrounds the hub portion 72 of the finger 69 and has a longitudinal slot 73 through which passes the tooth portion of the finger 69. As to the rocking motion about shaft 68, this finger and the sleeve 71 thus always are positively connected to one another. The sleeve 71 carries an arm 74 which by a rod 75 is connected to a lever 77 On their other end directed toward shaft 24 the levers 77 have lugs 78 that co-operate with rollers 79 of an actuating disk 81 loose on shaft 24. The disk 81 is influenced in clockwise direction by a spring 82, Figure 1, and causes, through the intermediary of the rollers 79 thereon,

the levers 77 to abut on sleeves 83 slid on the shafts 21. An upwardly directed arm 84 of the actuating disk 81 by means of a curved face 85 cooperates with a roller 87 mounted on an arm 86, Figures 1 and 3. The arm 86 is rigidly connected by a sleeve 88, Figure 3, to the two-armed lever 61, 62. The roller 87 is urged against the curved face 85 by a lever 92 mounted on a pin 89, Figures 1 and 2, of the machine frame and acted upon by a spring 91.

In the position of rest of the'diiferential mechanism the members of the total-taking mechanism assume the position illustrated in Figure 1. Upon the adding wheel 16 being coupled with the main actuator 33 during the return motion of the latter, and its totalizing tooth 67 arriving therewith in the path of the finger 69this taking placewhen the adding wheel passes from 1 to 0, the finger and through the intermediary of rod 75, also lever 77 are swung in a clockwise direction. The lever 77 by engaging the appurtenant roller 79 displaces the actuating disk 81 in a counter-clockwise direction so that the latter by its arm 84 engaging roller 87 imparts to the train of levers 61, 62, 48, 49 a clockwise rocking motion. This motion completed,

said train of levers on shaft 47, the actuating disk 81, the displaced finger 69, and lever 77 assume the position illustrated in full lines in Figure 2. The locking arm 61 has in part engaged the locking wheel 63 and locks the latter and therewith the main actuator 33 and the adding wheel coupled therewith; the roller 44 which in the position of rest touched the locking face in a point the normal line of which extends close below the shaft 47, has moved upwards to the left to such an extent that this normal line now extends above shaft 47. While in the first section of the totalizing operation the locking face 45 acts upon the train of levers of shaft 47 in the same sense as spring 91, the altered position of roller 44, after the main actuator 33 has been locked, causes an effect of the inclined face 45, that is under the driving pressure of the differential gear, in the sense of further rotation of the train of levers on shaft 47 until roller 44 has arrived on the locking face 46 and the locking arm 61 has completely entered the locking wheel 63, see the dot and dash line position of the :arts 44 and 61 in Figure 2. Due to the locking face 46, Figure 1, being concentric to shaft 32, the position of the parts in which the adding wheel 16 has been set to zero and the main actuator 33 to the value that was contained in the adding wheel 16 coupled therewith, is maintained also during the further motion of the auxiliary actuator 34.

In order to prevent the train of levers on shaft 47, Figure 1, from being thrown over by any unintentional motion without the actuating disk 81 being moved out of its position of rest by a totalizing tooth 67, the lever 92 possesses a lower arm 93 which cooperates with an arm 94 of the actuating disk 81. This arm 94 prevents a motion of arm 93 in the direction that would release the roller 87, as long as the actuating disk 81 is in position of rest illustrated in Figure 1.

The actuating fingers must not be in the path of the totalizing teeth 67 during the clockwise additive rotation of the adding wheels 16 in additions, as otherwise both these elements would act upon one another inadmissibly. In known mechanisms of similar design the fingers to this end are held in an inoperative position and brought to operative position by positioning the totaltaking lever. In order to avoid complicated actuating connections between the total-taking lever and the fingers, in the present machine the control of the latter fingers 69 is performed in such a manner that during the actuating motion of the actuators 33, 34 these fingers always are held in an operative position and during the return motion in an inoperative one. As in the adding operations, the shaft 15 is always in the swung-out position during the actuating motion of the actuators 33, 34, and thus the totalizing teeth 67 are unable to act upon the finger 69 during this period, even though the latter is in operative position.

To obtain the rocking motion of the fingers 69 the shaft 68, Figures 1 and 5, is not mounted stationarily in the machine frame but adapted to rock about shaft 76. To this end the shafts 68 together with the sleeves 71 are carried by arms 95 mounted on the shafts 76. The latter in their turn are connected by crank arms 96, Figure 2, fiXed on one of their ends and rods 97 to a common disk 98 mounted on shaft 24 and engaging by a roller 99 a curved groove 101 of a disk 102 loose on shaft 32. In each operation of the machine one complete revolution is imparted to disk 102 by suitable means (not shown). The groove 101 is shaped so as to cause the rocking motion of the shafts 68 and fingers 69 from the operative position shown in full lines in Figure 1 into the inoperative position shown in dot and dash lines, in the row 12 of adding mechanisms, Figure 1, to take place after the termination of the actuating motion of the actuators 33, 34 butprevious to the beginning of their return motion. The return motion of shaft 68 is performed toward the termination of the machine operation after the actuators 33, 34 have again been brought to position of rest and the eventually necessary tens transfer has been executed.

Summarily the described total-taking mechanism operates in the following man.- ner:

With addition the rollers 44, Figure 3, are out of the path of the auxiliary actuators 34, Figure 1. The actuator 34 therefore is not being locked and the two actuators 33, 34 are thus able to approach from both sides to the foot of the depressed key 31, owing to the actuating motion provoked by the rotation of shaft 24. During this actuating mo tion the actuating fingers 69 under the influence of the curved groove 101, Figure 2, are in operative position; since however at the same time all of the packets of adding mechanisms are in swung-out position, Figure 1, the totalizing teeth 67 are unable to influence the fingers 69. The actuating disk 81 and the train of levers on shaft 47 therefore remain in position of rest, the main actuator 33 thus cannot be locked by the locking arm 61.

After the actualin'g motion of the difi'erential mechanism has come to end, the fingers 69 by the shafts 68 rocking are brought to inoperative position by the curved disk 102, whereupon the selected packet of adding mechanisms is swung into gear. By the return motion now following to the actuators 33, 34, Figure 1, the value represented by actuator 33 is transmitted to the adding wheel 16 coupled therewith. An action of the rocked totalizing tooth 67 on the finger 69 however cannot take place as the latter is in inoperative position. After thereupon a tens transfer eventually prepared has been eflected in addition to the return motion of the differential mechanism, the swung-in packet of adding mechanisms is swung back and the finger 69 arrive again in operative position.

When on the contrary, an operation taking the total is set by displacing the totaltaking lever or the like, then a partial rotan sms is swung into gear whereby the selected adding mechanism through'the wheels 18, Figure 1, is coupled with the main actuators 33. If one of the adding wheels 16 of the selected adding mechanism stood on zero, then when swung into gear, its totalizing tooth 67 meets the finger 69 and displaces it in the same manner as if it had been turned anticlockwise on to the latter in the actuating motion of the differential mechanism, Figure 2. \Vith the adding wheels that are at zero thus already before the beginning of the actuating motion the main actuators 33 are locked and the auxiliary actuators released. The actuating motion caused by the rotation of shaft 24, Figure 1, causes in a l of the orders the adding wheels of which were not at zero a rotation of the main actuator 33, the auxiliary actuator being locked, until the respective totalizing tooth 67 meets the finger 69 and thereby throws over the train of levers on shaft 47. so that the main actuator 33 is locked and bolted in the position in which it holds the coupled adding wheel in zero position, by the locking surface 46, rol'er 44 and locking arm 61. The appurte nant indicating and printing wheel is capable of being set in accordance with the movement of the main actuator which is controlled by the number contained in the adding wheel coupled therewith.

After the actuating motion has been terminated the selected totalizer packet is swung out of gear and the pawls 69 under the influence of the grooved disk 102 arrive in the inoperative position. The actuators 34 then are returned idly to position of rest ing mechanism that has been zeroized. If the adding wheels are swung out of gear, that is, are uncoupled from the main actuators, only after the termination of the return motion of the differential mechanism, then, as known, an operation of taking sub-total takes place in which the value of the total is re-transmitted to the adding mechanism selected. The specific form of control of the totalizer packets for engagement with the differential actuating mechanism does not constitute one of the elements of my invention and any of the mechanisms known in the art may be used; the French patent to Fried. Krupp Aktiengesellschaft, No. 665,- 190, April 30, 1929, is illustrative of such prior art.

If adding mechanisms ofother rows are in thrown-in state during the return motion of the differential mechanism in taking total or taking sub-total, the value of the total is transmitted additively to these adding mechanisms during the same operation.

I claim 1. A total taking mechanism comprising a differential mechanism consisting of a main differential actuator, an auxiliary differential actuator and means for driving said auxiliary differential actuator complementarily to said main differential actuator, a mutual locking mechanism between said main and auxiliary differential actuators, said locking mechanism locking said auxiliary differential actuator in one position of said locking mechanism and releasing said auxiliary differential actuator and locking said main differential actuator in another position of said looking mechanism, an adding wheel connected to said main differential actuator, and means connected to said adding wheel for actuating said locking mechanism from one looking position to the other when the adding wheel passes into its zero position.

2. A mechanism as specified in claim 1. in which said locking mechanism comprises a locking arm, a series of locking teeth positively connected to said main actuator, said locking arm engaging one of said locking teeth immediately upon said locking mechanism being actuated by the lug on said adding wheel.

3. A total taking mechanism comprising a differential mechanism consisting of a main differential actuator and an auxi iary differential actuator. and means for driving said main differential actuator and for driving said auxiliary differential actuator complementarily to said main differential actuator. an adding wheel connected to said main differential actuator, a pivoted locking mechanism engaging said auxiliary differential actuator in one position of said locking mechanism. said locking mechanism releasing said auxiliary differential actuator and engaging a locking device on said main differential actuator in another position of said locking mechanism, and means to actuate said locking mechanism from one position to the other when said adding wheel passes into its zero position.

4. A total taking mechanism comprising a differential mechanism consisting of a main differential actuator, an auxiliary differential actuator and means for driving said auxiliarv differential actuator complementarily to said main differential actuator, locking means for said actuators, said locking means locking said auxiliary differential actuator in one position of said locking means and releasing said auxilary differential actuator and locking said main differential actuator in another position of said locking means, a packet of adding wheels, a shaft carrying said adding wheels, a totalizing tooth on each of said adding wheels, a rider adapted to couple selectively each of said wheels to said main differential actuator, a finger connected to said locking means, an actuator connected to said rider and to said finger for selectively positioning said rider and finger opposite the selected adding wheel, the totalizing tooth of the selected adding wheel engaging said finger in the zero position of said adding wheel to actuate the locking mechanism from one of its locking positions to the other of said locking positions.

5. A total taking mechanism including a main actuator, an adding wheel connected to said main actuator, a totalizing tooth on said adding wheel, a finger adapted to be engaged and actuated by the said totalizing tooth of said adding wheel, means actuated by said finger to arrest said adding wheel in its zero position, means for moving said main actuator in an actuating direction and for mov' ing said main actuator in a return direction. means for moving said finger into a position to be engaged by said totalizing tooth during the actuating motion of said main actuator and for moving said finger out of the path of said totalizing tooth during the return motion of said main actuator.

6. A total taking mechanism including a main actuator. an adding wheel connected to said main actuator, a. totalizing tooth on said adding wheel. a finger adapted to be moved into operative position with respect to said totalizing tooth and also adapted to be moved into inoperative position with respect to said totalizing tooth. said totalizing tooth in the operative position of said finger being adapted to engage and actuate said finger. means actuated by said finger to arrest said adding wheel in its zero position, means for moving said main actuator in an actuating direction and in a return direction, a driven cam means connected to said finger, said cam means moving said finger into the said operative position in the position of rest of the mechanism, then into the. said inoperative position at the termination of the actuating motion of said main actuator, and then into the said operative position after the return motion of said main actuator.

7. A total taking mechanism comprising an actuator, an adding wheel connected to said actuator, a finger, means associated with said adding wheel for actuating said finger in the zero position of said adding wheel, means for moving said finger into operative position or inoperative position with respect to the said means associated with said adding wheel, said finger being mounted on a pin, a pivot about which said pin is adapted to swing, a lever mounted on said pivot, a link connecting said finger to said lever, means for locking said actuator, and means connecting said lever to said locking means, whereby said locking means is actuated by said finger.

8. A total taking mechanism comprising a differential mechanism consisting of a main differential actuator, an auxiliary' differential actuator and means for driving said auxiliary differential actuator complementarily to said main differential actuator, locking means for said actuators, said locking means locking said auxiliary differential actuator in one position of said locking means and releasing said auxiliary differential actuator and locking said main differential actuator in another position of said locking means. a packet of adding wheels, a shaft carrying said adding wheels, :1 totalizing tooth on each of said adding wheels, a rider adapted to couple selectively each of said wheels to said main differential actuator, a finger for said packet, a shiftable shaft, said finger being rotatably but non-shiftably mounted on said shaft, a rotatable and nonshiftable sleeve surrounding said shaft, a longitudinal slot in said sleeve through which said finger projects, means connecting said sleeve to said locking means, an actuator connected to said rider and said shiftable shaft for selectively positioning said rider and finger opposite the selected adding wheel, the totalizing tooth of the selected adding wheel being adapted to engage and actuate said finger in the zero position of said adding wheel.

9. A total taking mechanism comprising a machine frame, a diflerential mechanism consisting of a main differential actuator, an auxiliary differential actuator and means for driving said auxiliary differential actuator complementarily tosaid main differential actuator, an adding wheel connected to said main differential actuator, a two arm locking device, a shiftable shaft, said locking lever being rotatably mounted'on said shaft, one of said arms being non-shiftable in said machine frame, locking teeth on said main differential actuator adapted to be engaged by said arm, the other of said arms being non-shiftably mourned on said shiftable when said roller engages the said locking face.

11. A mechanism according to claim 4, in

which means to prevent accidental actuation of said locking mechanism are provided, said means comprising a lever connected to said locking means, a stop on said actuating disk cooperating with said lever, said stop being removed from the path of said lever when said actuating disk is operated by the lug of the selected adding wheel. 7 12. A mechanism according to claim 9, in which the auxiliary differential actuator is provided with a locking face, said latter arm has a roller thereon adapted to engage said locking face in one position of said latter arm, said latter arm allowing rotation of said auxiliary differential actuator when engaging said locking face, a spring tending to move said latter arm into another position to engage said inclined face, and means to move said latter arm against the action of said spring to engage said locking face, a connection between said two arms whereby the first of said locking arms is maintained in said locking teeth when said latter arm engages said locking face.

The foregoing specification signed at C0- logne, Germany, this 11th day of December,

ERNST BREITLING. 

